Anti-Müllerian hormone (AMH) is a member of the transforming growth factor-beta superfamily, which plays an important role in both ovarian primordial follicle recruitment and dominant follicle selection in mice. However, the role of AMH in folliculogenesis in humans has not been investigated in detail. In the present study, AMH expression was assessed using immunohistochemistry in ovarian secti...

Ovarian follicles require an adequate blood supply for oxygen, nutrients and hormones, in addition to eliminating CO2 and other metabolites. Acquisition of an adequate vascular supply is probably a limiting step in the selection and maturation of the dominant follicle. In this way, there is a progressive interest in the study of the growth factors involved in the angiogenic process. In addition...

The Rho subfamily of GTPases has been shown to regulate cellular morphology. We report the discovery of a new member of the Rho family, named RhoL, which is equally similar to Rac, Rho, and Cdc42. Expression of a dominant-negative RhoL transgene in the Drosophila ovary caused nurse cells to collapse and fuse together. Mutant forms of Cdc42 mimicked this effect. Expression of constitutively acti...

In the current review the main fundamental biological differences in reproductive function between Bos taurus and Bos indicus cattle are discussed. Breed differences regarding puberty, estrous cycle patterns, estrous behavior, acquisition of ovulatory capacity, ovarian structures and reproductive hormones are presented. The main physiological differences that Bos indicus cattle present relative...

Natural FET studies to date determine the window of receptivity for implantation be calculated as either 6 days(d) after a natural LH surge (15IU/L) or 7d hCG trigger shot is administered induce ovulation in presence dominant follicle. All show no difference pregnancy outcome with approach. Our study sets out if our novel approach cycle (NC) FETs affects outcomes single autologous euploid embry...

Mycotoxin zearalenone is a phytoestrogenic substance that can disrupt the functioning of organs reproductive system cows. At same time, hyperestrogenic state occurs, which
 leads to overeating, multiple unsuccessful inseminations and infertility cows.
 The purpose research investigate effect single application drugs based on aromatase inhibitors main biochemical hormonal parameters bl...

Objective This retrospective study compared the effect of the luteal phase ovarian stimulation protocol (LP group) with the gonadotrophin-releasing hormone (GnRH) antagonist protocol (AN group) in women with poor ovarian responses. Methods Ovarian stimulation was initiated with 225 IU of human gonadotrophin (hMG) daily. When the dominant follicle diameter exceeded 13 mm, 0.25 mg of a GnRH antag...

AIMS This study aims to clarify the effects of polyadenylation status on M-phase promoting factors (MPFs) during in vitro porcine oocyte maturation. METHODS In this study, porcine follicular oocytes from large follicles (> 5 millimeter (mm)) and small follicles (< 3 mm) were examined at different follicular developmental stages. The polyadenylation of maternal mRNAs was inhibited by the addit...

This prospective, randomized trial in normo-ovulatory women was designed to test whether administration of low-dose exogenous FSH initiated during the early, mid to late follicular phase can induce multiple dominant follicle development. Forty normal weight women (age 19-35 years, cycle length 25-32 days) participated. A fixed dose (75 IU/day) of recombinant FSH was started on either cycle day ...